Measurement of $B_d^0$ - $\bar{B}_d$ 0 oscillations

Bd0 meson oscillations are measured in hadronic Z0 decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a b or a b̄ quark when it is produced, and using the charge of a lepton emitted at large pt or of a D*± to sign the presence of a B or a B̄ meson when it decays. With 3.2 million hadronic Z0 decays registered by DELPHI between 1991 and 1994, the mass difference Δmd between the two physical Bd0 states is measured in four channels:

electron positron: colliding beams
electron positron: annihilation
Z0: electroproduction
Z0: hadronic decay
bottom: pair production
B0 anti-B0: oscillation
B0: mass difference
particle identification: bottom
B0: decay modes
charge correlation

References(34)

Figures(0)

B0 - anti-B0 Mixing Within and Beyond the Standard Model

Guido Altarelli
(
- CERN
)
,
Paula J. Franzini
(
- CERN
)

- Z.Phys.C 37 (1988) 271
•
DOI:
- 10.1007/BF01579913

B anti-B Mixing: A Review of Recent Progress

Paula J. Franzini
(
- CERN
)

- Phys.Rept. 173 (1989) 1
•
DOI:
- 10.1016/0370-1573(89)90132-4

Observation of top quark production in $\bar{p}p$ collisions

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 74 (1995) 2626-2631
•
e-Print:
- hep-ex/9503002
•
DOI:
- 10.1103/PhysRevLett.74.2626

Rare decays, CP violation and QCD

Andrzej J. Buras
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)

- Acta Phys.Polon.B 26 (1995) 755-788,
- Acta Phys. Pol. B26 (1995) 755-788, and Muenchen MPI Phys. - MPI-PhT-95-017 (95/03,rec.Mar.) 38 p. Muenchen Tech. U. - TUM-T31-95-085 (95/03,rec.Mar.) 38 p
•
e-Print:
- hep-ph/9503262

Observation of the top quark

D0

Collaboration

•

S. Abachi
(
- Fermilab
)

et al.

- Phys.Rev.Lett. 74 (1995) 2632-2637
•
e-Print:
- hep-ex/9503003
•
DOI:
- 10.1103/PhysRevLett.74.2632

Leading and Next-to-leading {QCD} Corrections to $\epsilon$ Parameter and $B^0 - \bar{B}^0$ Mixing in the Presence of a Heavy Top Quark

Andrzej J. Buras
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
Matthias Jamin
(
- Munich, Tech. U.
)
,
Peter H. Weisz
(
- Munich, Max Planck Inst.
)

- Nucl.Phys.B 347 (1990) 491-536
•
DOI:
- 10.1016/0550-3213(90)90373-L

A Study of anti-B0 ---> D+ lepton- anti-neutrino and B0 anti-B0 mixing using partial D+ reconstruction

ARGUS

Collaboration

•

H. Albrecht
(
- DESY
)

et al.

- Phys.Lett.B 324 (1994) 249-254
•
DOI:
- 10.1016/0370-2693(94)90415-4

Exclusive hadronic B decays to charm and charmonium final states

CLEO

Collaboration

•

M.S. Alam
(
- SUNY, Albany
)

et al.

- Phys.Rev.D 50 (1994) 43-68
•
e-Print:
- hep-ph/9403295
•
DOI:
- 10.1103/PhysRevD.50.43

Measurement of B - anti-B mixing at the Z using a jet charge method

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 284 (1992) 177-190
•
DOI:
- 10.1016/0370-2693(92)91943-4

Measurement of the $B^0$ - $\bar{B}^0$ mixing parameter in DELPHI

DELPHI

Collaboration

•

P. Abreu

et al.

- Phys.Lett.B 332 (1994) 488-500
•
DOI:
- 10.1016/0370-2693(94)91285-8

Measurement of the B0 - anti-B0 mixing parameter and the Z ---> b anti-b forward - backward asymmetry

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 335 (1994) 542-553,
- Phys. Lett. B335 (1994) 542-553. and CERN Geneva - CERN-PPE-94-089 (94/06,rec.Jul.) 16 p
•
DOI:
- 10.1016/0370-2693(94)90391-3

Measurement of the $B^0$ - $\bar{B}^0$ mixing, Gamma (Z0 $\to b \bar{b}$ ) / Gamma (Z0 $\to$ hadrons) and semileptonic branching ratios for $b$ flavored hadrons in hadronic z0 decays

OPAL

Collaboration

•

R. Akers

et al.

- Z.Phys.C 60 (1993) 199-216
•
DOI:
- 10.1007/BF01474616

Measurement of B0 - anti-B0 mixing at the CERN S p anti-p S collider

UA1

Collaboration

•

C. Albajar
(
- CERN
)

et al.

- Phys.Lett.B 262 (1991) 171-178
•
DOI:
- 10.1016/0370-2693(91)90661-9

Measurement of $b\bar{b}$ production correlations, $B^0 \overline{B}^0$ mixing, and a limit on epsilon(B) in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.D 55 (1997) 2546-2558
•
DOI:
- 10.1103/PhysRevD.55.2546

Observation of the time dependence of B(d)0 - anti-B(d)0 mixing

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 313 (1993) 498-508
•
DOI:
- 10.1016/0370-2693(93)90025-D

An Investigation of $B_d^0$ and $B_s^0$ oscillation

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 322 (1994) 441-458
•
DOI:
- 10.1016/0370-2693(94)91177-0

- Phys.Lett.B 33 409

Measurement of the B(d)0 oscillation frequency using kaons, leptons and jet charge

DELPHI

Collaboration

•

P. Abreu

et al.

- Z.Phys.C 72 (1996) 17-30
•
DOI:
- 10.1007/s002880050219

Measurement of the B(d)0 meson oscillation frequency

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 383 (1996) 487-498
•
DOI:
- 10.1016/0370-2693(96)00768-X

Measurement of the time dependence of B(d)0 <---> anti-B(d)0 mixing using a jet charge technique

OPAL

Collaboration

•

R. Akers

et al.

- Phys.Lett.B 327 (1994) 411-424
•
DOI:
- 10.1016/0370-2693(94)90747-1

Measurement of the time dependence of B(d)0 <---> anti-B(d)0 mixing using leptons and D*+- mesons

OPAL

Collaboration

•

R. Akers

et al.

- Phys.Lett.B 336 (1994) 585-598
•
DOI:
- 10.1016/0370-2693(94)90577-0

A Study of $B$ meson oscillations using dilepton events

OPAL

Collaboration

•

R. Akers

et al.

- Z.Phys.C 66 (1995) 555-565,
- Z. Phys. C66 (1995) 555-565, and CERN Geneva - CERN-PPE-95-012 (95/01,rec.Feb.) 27 p. e: CERN ppe95-012
•
DOI:
- 10.1007/BF01579630